//C05:exec_5_3.c -- convert to week and day.
#include <stdio.h>
int main(void)
{
    int day,week,myday;
    printf("Enter your days:\n");
    scanf("%d", &myday);
    week = myday / 7;
    day = myday % 7;
    printf("Your days is %d week : %d day\n", week, day);
}
